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Ethyl Pyruvate Induces Tolerogenic Dendritic Cells.

Neda Djedovic1, María José Mansilla2,3, Bojan Jevtić1

  • 1Department of Immunology, Institute for Biological Research "Siniša Stanković" University of Belgrade, Belgrade, Serbia.

Frontiers in Immunology
|February 23, 2019
PubMed
Summary

Ethyl pyruvate (EP) directs dendritic cells (DC) toward a tolerogenic state. EP-treated DC reduce T cell activation, showing promise for treating autoimmune diseases like multiple sclerosis.

Keywords:
autoimmunitydendritic cellsethyl pyruvateimmune-regulationtolerogenicity

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Area of Science:

  • Immunology
  • Cell Biology
  • Neuroimmunology

Background:

  • Dendritic cells (DC) are crucial antigen-presenting cells that regulate immune responses.
  • Tolerogenic DC (tolDC) possess immunoregulatory properties and are investigated for autoimmune disease therapies.
  • Ethyl pyruvate (EP) is a redox analog of dimethyl fumarate, a multiple sclerosis therapeutic.

Purpose of the Study:

  • To investigate the tolerogenic effects of Ethyl pyruvate (EP) on dendritic cells (DC).
  • To determine if EP can induce a tolerogenic phenotype in DC for potential therapeutic applications in multiple sclerosis.

Main Methods:

  • Phenotypic analysis of DC treated with EP.
  • Assessment of DC expression of T cell activation markers (CD86, CD83, HLA-DR, CD11c).
  • Evaluation of EP-treated DC's impact on allogeneic lymphocyte proliferation and cytokine production.

Main Results:

  • EP treatment reduced the expression of CD86, CD83, and HLA-DR on DC.
  • DC viability and CD11c expression remained unaffected by EP.
  • EP-treated DC suppressed lymphocyte proliferation and modulated cytokine profiles.

Conclusions:

  • Ethyl pyruvate (EP) effectively directs dendritic cells (DC) toward a tolerogenic phenotype (tolDC).
  • EP-induced tolDC exhibit reduced capacity for T cell activation.
  • These findings support EP as a potential therapeutic agent for multiple sclerosis and other autoimmune conditions.